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1 Rookie
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5 Posts
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31
March 6th, 2025 10:04
cmos battery failure lights
Inspiron 5593
Hi,
my laptop wont turn on because of CMOS battery failure, i'd replaced the battery but it still shows 3 amber light and 1 white which is CMOS battery failure again. do i need to do something else?
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ejn63
10 Elder
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28.7K Posts
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March 6th, 2025 11:55
It is more likely a clock failure if replacing the battery did not solve the problem. Replace the mainboard.
JOcean
9 Legend
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12.6K Posts
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March 6th, 2025 13:32
@ejn63 is spot on. However when you replaced the battery with a brand new battery did you leave the battery out of the system for at least 15 minutes before installing the new battery?
shadow971959
1 Rookie
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March 6th, 2025 13:56
@JOcean i'll try this first